$1,182+ Cheap flights from Seattle (SEA) to Asuncion (ASU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
Jul 13 — Jul 201
Round-trip
1 adult, Economy
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Best
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Cheapest flights from Seattle to AsuncionExplore the most affordable flight options available from Seattle to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.
Explore the most affordable flight options available from Seattle to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:05 pm
SEA
- ASU
2 stops26h 58m
Copa Airlines
Mon 10/123:58 am
ASU
- SEA
2 stops19h 05m
Copa Airlines
Deal found 6/12![Copa Airlines logo]()
$1,182
This LATAM Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am
SEA
- ASU
2 stops20h 05m
LATAM Airlines
Thu 10/298:10 am
ASU
- SEA
2 stops30h 16m
LATAM Airlines
Deal found 6/9![LATAM Airlines logo]()
$1,221
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:59 pm
SEA
- ASU
2 stops20h 04m
United Airlines
Thu 10/16:33 am
ASU
- SEA
2 stops44h 12m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,224
This Copa Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:29 pm
SEA
- ASU
2 stops26h 25m
Copa Airlines
Sun 10/111:47 am
ASU
- SEA
2 stops24h 12m
Copa Airlines
Deal found 6/12![Copa Airlines logo]()
$1,251
This Copa Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 am
SEA
- ASU
2 stops37h 57m
Copa Airlines
Sun 8/26:33 am
ASU
- SEA
2 stops22h 42m
Copa Airlines
Deal found 6/11![Copa Airlines logo]()
$1,262
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:29 pm
SEA
- ASU
2 stops23h 34m
Copa Airlines
Sun 10/113:58 am
ASU
- SEA
2 stops22h 01m
Copa Airlines
Deal found 6/12![Copa Airlines logo]()
$1,300
This Justfly.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:55 am
SEA
- ASU
2 stops19h 10m
Multiple Airlines
Tue 10/138:10 am
ASU
- SEA
2 stops41h 48m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,304
This Expedia deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:43 pm
SEA
- ASU
2 stops25h 57m
Multiple Airlines
Mon 8/311:05 am
ASU
- SEA
2 stops39h 00m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,325
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:58 pm
SEA
- ASU
2 stops45h 05m
United Airlines
Mon 10/126:33 am
ASU
- SEA
3 stops59h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,340
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:03 am
SEA
- ASU
2 stops18h 28m
United Airlines
Thu 10/296:34 am
ASU
- SEA
3 stops59h 44m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,481
Best flights from Seattle to AsuncionDiscover carefully curated flight deals from Seattle to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2026.
Discover carefully curated flight deals from Seattle to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2026.
This LATAM Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am
SEA
- ASU
2 stops20h 05m
LATAM Airlines
Thu 10/298:10 am
ASU
- SEA
2 stops30h 16m
LATAM Airlines
Deal found 6/11![LATAM Airlines logo]()
$1,221
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:59 pm
SEA
- ASU
2 stops20h 04m
United Airlines
Thu 10/16:33 am
ASU
- SEA
2 stops44h 12m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,224
This Copa Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:29 pm
SEA
- ASU
2 stops26h 25m
Copa Airlines
Sun 10/111:47 am
ASU
- SEA
2 stops24h 12m
Copa Airlines
Deal found 6/12![Copa Airlines logo]()
$1,251
This Justfly.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:55 am
SEA
- ASU
2 stops19h 10m
Multiple Airlines
Tue 10/138:10 am
ASU
- SEA
2 stops41h 48m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,304
This LATAM Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:15 am
SEA
- ASU
2 stops18h 50m
LATAM Airlines
Tue 10/138:10 am
ASU
- SEA
2 stops20h 08m
LATAM Airlines
Deal found 6/9![LATAM Airlines logo]()
$1,221
This Copa Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 am
SEA
- ASU
2 stops37h 57m
Copa Airlines
Sun 8/26:33 am
ASU
- SEA
2 stops22h 42m
Copa Airlines
Deal found 6/11![Copa Airlines logo]()
$1,262
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:59 pm
SEA
- ASU
2 stops25h 32m
United Airlines
Tue 10/136:33 am
ASU
- SEA
3 stops35h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,340
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:58 pm
SEA
- ASU
2 stops26h 33m
United Airlines
Tue 10/136:33 am
ASU
- SEA
3 stops35h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,340
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:59 pm
SEA
- ASU
2 stops20h 04m
United Airlines
Tue 10/136:33 am
ASU
- SEA
3 stops35h 49m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,340
Last-minute flights from Seattle to AsuncionDiscover last-minute flight deals from Seattle to Asuncion. Data last updated June 13, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Asuncion. Data last updated June 13, 2026 and is based on user searches.
This Copa Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 am
SEA
- ASU
2 stops37h 57m
Copa Airlines
Sun 8/26:33 am
ASU
- SEA
2 stops22h 42m
Copa Airlines
Deal found 6/11![Copa Airlines logo]()
$1,262
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2611:00 pm
SEA
- ASU
3 stops27h 05m
Multiple Airlines
Sun 8/28:25 am
ASU
- SEA
3 stops32h 08m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$2,090
This Expedia deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:43 pm
SEA
- ASU
2 stops25h 57m
Multiple Airlines
Mon 8/311:05 am
ASU
- SEA
2 stops39h 00m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,325
Find flight deals from Seattle to Asuncion
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Asuncion (ASU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,182 (KAYAK) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Asuncion that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 13, 2026.
Use the filters below to find and compare flights from Seattle to Asuncion that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Sun 10/25
6:00 am-6:05 am
2 stops20h 05m
Asuncion Silvio Pettirossi
Thu 10/29
8:10 am-10:26 am
2 stops30h 16m
$1,221
Quickest round-trip
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Mon 10/5
7:15 am-6:05 am
2 stops18h 50m
Asuncion Silvio Pettirossi
Tue 10/13
8:10 am-12:18 am
2 stops20h 08m
$1,221
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Mon 9/28
11:59 pm-12:03 am
2 stops20h 04m
Asuncion Silvio Pettirossi
Thu 10/1
6:33 am-10:45 pm
2 stops44h 12m
$1,224
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Thu 10/8
8:29 pm-2:54 am
2 stops26h 25m
Asuncion Silvio Pettirossi
Sun 10/11
1:47 am-9:59 pm
2 stops24h 12m
$1,251
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Sun 7/26
6:00 am-11:57 pm
2 stops37h 57m
Asuncion Silvio Pettirossi
Sun 8/2
6:33 am-1:15 am
2 stops22h 42m
$1,262
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Thu 10/8
6:55 am-6:05 am
2 stops19h 10m
Asuncion Silvio Pettirossi
Tue 10/13
8:10 am-9:58 pm
2 stops41h 48m
$1,304
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Fri 10/9
11:59 pm-5:31 am
2 stops25h 32m
Asuncion Silvio Pettirossi
Tue 10/13
6:33 am-2:22 pm
3 stops35h 49m
$1,340
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Thu 10/8
10:58 pm-5:31 am
2 stops26h 33m
Asuncion Silvio Pettirossi
Tue 10/13
6:33 am-2:22 pm
3 stops35h 49m
$1,340
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Mon 10/5
11:59 pm-12:03 am
2 stops20h 04m
Asuncion Silvio Pettirossi
Tue 10/13
6:33 am-2:22 pm
3 stops35h 49m
$1,340
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Asuncion flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Asuncion flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Asuncion flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Asuncion flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Asuncion flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Asuncion
Have a flexible travel schedule? Discover the best time to fly to Asuncion from Seattle with our price prediction graph.
SEA-ASU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Asuncion
Get insights into the airlines that provide service to Asuncion. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Asuncion. Reviews last updated June 13, 2026.
Peruse reviews from past customers who have flown with LATAM Airlines from Seattle to Asuncion to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.0
Overall
7.4
Boarding
7.5
Entertainment
7.0
Comfort
7.3
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Crew
8.0
Overall
7.4
Boarding
7.5
Entertainment
7.0
Comfort
7.3
Food
6.7
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Related info for your journey
Find useful and relevant information for your journey from Seattle to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Asuncion
Explore flights to Asuncion departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 13, 2026.
Complete your trip
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Seattle and Asuncion flights
Browse other Seattle and Asuncion flight options. Last updated on June 13, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Asuncion
Discover the top airline that operate flights from Seattle to Asuncion. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$729 | Average$1,111 | FlexibilityNo cancel fee | On-time81% |